Solubility of hydrogen and deuterium in body-centered-cubic uranium alloys

Journal Article · Thu Mar 08 00:00:00 EST 1979 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100468a010· OSTI ID:6360626

Powell, G L

The equilibrium constants for the reaction of several body-centered-cubic uranium-molybdenum alloys, uranium-niobium alloys, and a uranium-niobium-zirconium alloy with both hydrogen gas and deuterium gas have been determined with a precision of 1% at infinite dilution as a function of temperature. The free-energy function for hydrogen in these alloys has been determined and expressed in terms of the bound-proton model. Analytical expressions for the temperature dependence of the standard enthalpy and standard entropy of solution of hydrogen in these alloys are presented. Correlations are drawn between the alloy composition and the parameters of the bound-proton model. The best value for the number of hydrogen sites per metal atom in these alloys was found to be three. The zero-point enthalpy of formation of hydrogen in these alloys was very nearly a linear function of alloy composition, and the Einstein temperatures of the bound-proton (1680 +- 80 K) was not a function of alloy composition. 12 figures, 3 tables.

• Research Organization: Oak Ridge Y-12 Plant, TN
• OSTI ID: 6360626
• Journal Information: J. Phys. Chem.; (United States), Vol. 83:5
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DEUTERIUM
ISOTOPE EFFECTS
SOLUBILITY
HYDROGEN
MOLYBDENUM ALLOYS
CHEMICAL REACTIONS
NIOBIUM ALLOYS
URANIUM ALLOYS
ZIRCONIUM ALLOYS
CORRELATIONS
ENTHALPY
ENTROPY
EQUILIBRIUM
EXPERIMENTAL DATA
FREE ENERGY
ISOLATED VALUES
MIXTURES
TEMPERATURE DEPENDENCE
VERY HIGH TEMPERATURE
ACTINIDE ALLOYS
ALLOYS
CRYOGENIC FLUIDS
DATA
DATA FORMS
DISPERSIONS
ELEMENTS
ENERGY
FLUIDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
PHYSICAL PROPERTIES
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
360105* - Metals & Alloys- Corrosion & Erosion
400203 - Isotope Exchange & Isotope Separation- (-1987)